Reporting Segment And Geographic Information (Reconciliation Of The Company's Consolidated Segment Operating Income To Consolidated Income Before Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2012	Dec. 30, 2011	Dec. 31, 2010
Segment Reporting, Measurement Disclosures [Abstract]
Consolidated segment operating income	$ 440,933	$ 327,506	$ 247,536
Unallocated corporate expense	(80,996)	(70,310)	(55,758)
Acquisition costs	(21,662)	(14,892)	(6,537)
Amortization	(125,707)	(85,902)	(57,639)
Operating income	212,568	156,402	127,602
Non-operating income, net	16,856	11,052	13,485
Income before taxes	$ 229,424	$ 167,454	$ 141,087